Sr. Fullstack Platform Engineer - (Backend Focus)

Salt AI is pioneering the future of life sciences with advanced AI, and they are seeking a Senior Fullstack Platform Engineer. This role involves building a governed execution platform for AI work, focusing on backend and platform development while ensuring a high-quality customer experience.

Responsibilities:

• Build the contracts that let agents call real pipelines with typed inputs, structured outputs, streaming status, retries, logs, and auditability
• Model platform concepts cleanly, build durable APIs, evolve service boundaries, and make customer workflows reliable at the backend layer
• Work on deployment patterns, scaling, isolation, runtime behavior, observability, and operational reliability for AI workflows
• Build the frontend and backend experiences customers use to configure, run, inspect, debug, and reuse AI workflows
• Build secure customer data access patterns, retrieval systems, indexing, hybrid search, and APIs that respect enterprise boundaries
• Make distributed AI workflows understandable: what ran, what changed, what failed, why it failed, and what the user or system can do next
• Turn one-off customer implementations into reusable capabilities without sanding off the important domain-specific details
• Improve the tools, docs, test harnesses, internal workflows, and diagnostics that let a small team move quickly without losing control of the system